Salary: $170k + super + bonus
Location: Sydney, hybrid

A growing Sydney software company with a multi-tenant SaaS platform used by large organisations. The team is scaling the platform to many more customers and adding AI-powered features on top.

The prospect
They are hiring a Senior Backend Engineer to own the core of the platform: a multi-tenant, security-sensitive product built on Laravel, MySQL and Postgres, running on containers in the cloud. You will make the architecture decisions that let the platform scale, and set the standard for how backend code is designed, reviewed and shipped.

What you will work on
Moving legacy server-rendered views to clean, well-tested APIs for the frontend team
Multi-tenant data architecture and query performance at scale
Security and privacy built in from the start: auth, PII handling, penetration-test fixes
Protected, repeatable releases: migrations,



rollbacks and CI/CD
Observability that catches problems before customers do
The data and API layers behind AI-powered product features
Technical direction and code review for the whole team, including offshore engineers

You will have
Strong commercial PHP and Laravel experience, or deep experience in a comparable backend framework and a real appetite to go all-in on Laravel
TypeScript and Vue.js experience
Solid database skills: schema design, indexing, query optimisation, protected migrations
Experience designing and evolving REST APIs for a multi-tenant SaaS product
A security-first, test-first mindset

Apply with your CV for a confidential chat with Jordan Burns, Sustain Recruit.

📌 Senior Software Engineer Backend Php / Laravel New South Wales
🏢 Sustain Recruit
📍 New South Wales